Magnetic Characterization of SMCs

Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2017, Tutors: Javier Tejada Palacios, Arturo Lousa RodriguezIn this article we will discuss the nature of Soft Magnetic Composites (SMCs) magnetization, with special emphasis on deep understanding of magnetic losess and their sources. SMCs are usually characterized by having high saturated magnetization, and extremely low coercivity fields. Measuring the complex magnetic permeability, we will try to describe the behavior in the Hz, MHz frequency range. This document focuses in the deep understanding of one particular composite and its complete characterization. Hysteresis cycle obtained by SQUID measurements and laser diffraction, to determine the mean size and distribution of particles, are exposed